• Need to figure out Mass Storage caching
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So I have this IBM branded LTO tape library which I upgraded from LTO to LTO-3 and added an additional 36 slots for a total capacity of 22.1 terabytes. Considering just how damn huge that is I can probably rent out half to my friends for archive storage and still have trouble filling the rest. I want to use this as the primary storage and backup system for my server as all it has for real disks are three 72gb SCSI drives put in RAID 0 and backed up by a Quantum VS160 DLT drive. Now obviously data storage and retrieval from the library is lengthy and takes 60 seconds at the soonest, even with random access and LTFS active and no need for the robot to swap tapes so I want to turn the three disks in RAID that are in the system into some sort of cache that I can initially request data to and allow to pool there and then at a scheduled time the server will compare the modification dates of the files on the drives and in the library and write any newer (or files that do not exist in the library already) files in the cache to the library (and if it finds a file has not been modified in 48 hours, dump it from the cache). The issue is that I am not aware of any software that can do that, or if Windows 2000 Server can do that either (I'm running such an old OS because it supports Appletalk and a less bitchy version of NFS.
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